North Korea: NK GPS Jamming Jun12

EXECUTIVE SUMMARY:

• South Korea has experienced GPS signal jamming three times during the past three years.
• The jamming source was traced by South Korea to locations in North Korea.
• Jamming occurred during joint U.S.-South Korea exercises and after a failed North Korean missile launch.
• The jamming had no significant impact on civilian or military operations.
• Future jamming may impact international relations or warfighting functions due to resulting accidents, unintentional crossing of international borders or weapon delivery guidance system failures.